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<h1><span class="kind-method">feedUint8FromStream</span> method 
</h1></div>

    <section class="multi-line-signature">
      
<span class="returntype"><a href="https://api.flutter.dev/flutter/dart-core/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="https://api.flutter.dev/flutter/dart-core/int-class.html">int</a></span>&gt;</span></span>
<span class="name ">feedUint8FromStream</span>(<wbr><ol class="parameter-list single-line"> <li><span class="parameter" id="feedUint8FromStream-param-buffer"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-typed_data/Uint8List-class.html">Uint8List</a></span> <span class="parameter-name">buffer</span></span></li>
</ol>)

      

    </section>
    
<section class="desc markdown">
  <p>Feed a UInt8 stream interleaved when a flow control is wanted</p>
<hr>
<p>Please look to this <a href="/tau/guides/guides_live_streams.html">small guide</a> if you need help.</p>
<h2 id="parameters">Parameters</h2>
<ul>
<li><strong><em>buffer:</em></strong> is a Uint8List containing the audio data that you want to play.</li>
</ul>
<h2 id="return">Return</h2>
<p>Returns a Future that you MUST await if you really need a flow control.
This future is declared <em>completed</em> when the data has been played,
or at least when they had be given to the lower layer of the software.
Note: don't use the <code>int</code> returned. It is just for legacy reason and must not be used.</p>
<h2 id="example">Example</h2>
<pre class="language-dart"><code class="language-dart">await myPlayer.startPlayerFromStream
(
    codec: Codec.pcm16
    numChannels: 2
    sampleRate: 48100
    interleaved: true,
);

await myPlayer.feedUint8FromStream(myData);
</code></pre>
<h2 id="see-also">See also</h2>
<ul>
<li><a href="../../public_flutter_sound_player/FlutterSoundPlayer/feedInt16FromStream.html">feedInt16FromStream()</a></li>
<li><a href="../../public_flutter_sound_player/FlutterSoundPlayer/feedF32FromStream.html">feedF32FromStream()</a></li>
<li><a href="../../public_flutter_sound_player/FlutterSoundPlayer/float32Sink.html">float32Sink</a></li>
<li><a href="../../public_flutter_sound_player/FlutterSoundPlayer/int16Sink.html">int16Sink</a></li>
<li><a href="../../public_flutter_sound_player/FlutterSoundPlayer/uint8ListSink.html">uint8ListSink</a></li>
<li>Please look to this <a href="/tau/guides/guides_live_streams.html">small guide</a> if you need help</li>
</ul>
<hr>
</section>


    
<section class="summary source-code" id="source">
  <h2><span>Implementation</span></h2>
  <pre class="language-dart"><code class="language-dart">Future&lt;int&gt; feedUint8FromStream(Uint8List buffer) async {
  &#47;&#47; await _waitOpen();
  if (_isInited != Initialized.fullyInitialized) {
    throw Exception(&#39;Player is not open&#39;);
  }
  if (isStopped) {
    return 0;
  }

  if (codec != Codec.pcmFloat32 &amp;&amp; codec != Codec.pcm16) {
    logger.e(
        &#39;feedUint8FromStream() : Cannot feed on a Codec &lt;&gt; pcmFloat32 or pcm16&#39;);
    throw Exception(
        &#39;feedUint8FromStream() : Cannot feed on a Codec &lt;&gt; pcmFloat32 or pcm16&#39;);
  }
  if (!interleaved) {
    logger.e(
        &#39;feedUint8FromStream() : Cannot feed with UInt8 with non interleaved mode&#39;);
    throw Exception(
        &#39;feedUint8FromStream() : Cannot feed with UInt8 with non interleaved mode&#39;);
  }
  int s = 2;
  if (codec == Codec.pcmFloat32) {
    s = 4;
  }
  double n1 = (buffer.length.toDouble()) &#47; (s * numChannels.toDouble());
  double n2 =
      (buffer.length.toDouble()) &#47; (s * numChannels.toDouble()).round();
  if (n1 != n2) {
    logger.e(
        &#39;feedUint8FromStream() : buffer length (${buffer.length}) is not a multiple of number of channels * $s ($numChannels)&#39;);
    throw Exception(
        &#39;feedUint8FromStream() : buffer length (${buffer.length}) is not a multiple of number of channels * $s($numChannels)&#39;);
  }

  return _feed(buffer);
}</code></pre>
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